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Appendices
C
C-5
Destination Address
The address of the station receiving a frame.
DNS
Domain Name Services provides a mechanism that
allows users to remember logical machine names rather
than IP addresses. DNS provides mapping between a
machine name (e.g., www.fluke.com) and its IP address
(e.g., xxx.xxx.xxx.xxx).
EIA568
Electronic Industries Association Commercial Building
Telecommunications Wiring Standard. Specifies
maximum cable lengths, installation practices, and
performance specifications for generic building wiring.
Encapsulation
Encapsulation is the method of placing one protocol into
another protocol’s format. For example, in a Novell
Ethernet environment there are four different methods to
encapsulate IPX in Ethernet/802.3 frames: 802.3 raw,
802.2, Ethernet II, and SNAP.
Ethernet
Ethernet is a 10 Mbps topology that runs over thick coax,
thin coax, twisted-pair, and fiber-optic cabling systems.
EtherTalk
EtherTalk is the AppleTalk network protocol running over
the Ethernet network transport.
Fast Ethernet
Industry standard terminology for 100Base-T. Industry
groups do not agree on using the term to refer to 100VG-
AnyLAN; some call 100VG-AnyLAN a Fast Ethernet
technology while others do not.
FCS (Frame Check Sequence)
A field transmitted in LAN frames that encodes error
checking information.
Frame
A frame is a unit of data transmission divided into groups
of bits. The header and a check sequence form the
frame.